This might sounds stupid but after 2 months of owning my 14 MKZ, my lower back hurts on and after every drive. I commute 45 mins to work. Yesterday my wife got in the passenger seat and said 'your seats are really uncomfortable' I tried messing with the lumbar, setting it all the way out, halfway, all the way in.
Just wanted to see if anyone else noticed that. I couldn't find anything on google so maybe its just me.